Features: 1.Easy to use, just put it on top of the bridge 2.Made of good quality rubber, flexible and durable 3.Compare to the metal mute, rubber mute would not scratch your cello and damage the bridge 4.The mute can effectively reduce the volume and allow you to practice without distrubing others 5.It would not effect the tone but give the cello a mellow sound specification:Description: This is a cello practice mute. Made of good quality rubber, flexible and durable. If you are looking for a cello mute, our product is the best choice for you. it is great for practicing and playing cello when you don't want to disturb your family or friend. Easy to use, just put it on top of the bridge. Made of good quality rubber, flexible and durable. Compare to the metal mute, rubber mute would not scratch your cello and damage the bridge. The mute can effectively reduce the volume and allow you to practice without distrubing others. It would not effect the tone but give the cello a mellow sound. s: Condition: 100% Brand New Item Type: Musical Instruments Accessory Material: Rubber Color: Black Weight: Approx. 12g Diameter: Approx. 3.5 cm / 1.38inch Thicknes: Approx. 1.3cm / 0.51inch Package Include: 1 * Cello Mute Note: Please allow 1-3mm error due to manual measurement. Thanks for your understanding.